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New VegasCraft

Composites Minecraft into Fallout: New Vegas and lets you build in the Mojave.

Code onlyby Davozh1
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At your own risk. We link, never host. Safety

About this project

Runs native Linux Minecraft Java 26.3 with Fabric next to Fallout: New Vegas 1.4.0.525 under Proton. One 32-bit DLL acts as both an xNVSE plugin and a ReShade add-on: it sends FNV's camera to Minecraft over a local WebSocket, turns FNV's ground into invisible Minecraft collision using Havok raycasts, and composites Minecraft's colour and depth, passed through /dev/shm, into FNV's frame. Tested only on CachyOS; no binaries are published, so you build it with mingw-w64 and JDK 25. Blocks do not yet stop the player or NPCs in FNV.

  • Build and break Minecraft blocks in the Mojave
  • Minecraft is hidden behind FNV rocks and buildings by depth testing
  • Minecraft is hidden while FNV menus are open
  • Removable with fnv/install.sh --remove
Requirements and setup

Linux with Steam + Proton, Fallout: New Vegas 1.4.0.525 (Steam) without other ReShade/d3d9.dll mods, owned Minecraft: Java Edition with Prism Launcher, a Vulkan (DXVK) GPU, and git/curl/7z/unzip/JDK 25/mingw-w64 (i686) to build. No binaries are published.

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